Qhov sib txawv tseem ceeb ntawm allylic thiab benzylic halides yog tias allylic halides muaj halogen atom sib txuas rau ib qho allylic carbon atom whereas benzylic halides muaj halogen atom bonded rau benzylic carbon atom.
Ib qho allylic carbon atom yog cov pa roj carbon atom uas nyob ib sab ntawm ob daim ntawv cog lus hauv cov organic compound thaum lub benzylic carbon atom yog cov pa roj carbon atom uas nyob ib sab ntawm lub nplhaib benzene.
Allylic Halides yog dab tsi?
Allylic halides yog cov organic tebchaw uas muaj cov tshuaj formula R=R'-R”X. Hauv lwm lo lus, allylic halides muaj ib lossis ntau dua halogen atoms ntawm allylic carbons. Ib qho piv txwv yog allylic chloride compound.
Daim duab 01: Cov qauv ntawm Allyl Chloride
Allyl chloride compound muaj nws cov tshuaj chlorine atom sib txuas rau cov pa roj carbon atom uas nyob ib sab ntawm ob daim ntawv cog lus hauv molecule. Hauv lwm lo lus, allyl chlorides yog alkenes uas muaj cov tshuaj chlorine atom. Hauv cov molecule no, cov tshuaj chlorine atom yog khi rau cov pa roj carbon atom uas nyob ze tshaj rau ob daim ntawv cog lus ntawm alkene. Txawm hais tias carbon atoms muaj ob daim ntawv cog lus yog sp2 hybridized, cov pa roj carbon atom bearing cov tshuaj chlorine atom yog sp3 hybridized.
Tsis tas li ntawd, cov pa roj carbon atom no txuas nrog ob-bonded carbon atom los ntawm ib daim ntawv cog lus. Yog li ntawd, lub electron ceev nyob ib ncig ntawm no carbon atom yog qis dua li ntawm cov pa roj carbon atoms nyob rau hauv ob daim ntawv cog lus. Yog tias ib lub molecule muaj ob daim ntawv cog lus, ces cov allylic carbon uas dais cov chlorine atom tuaj yeem ua tus choj rau ob daim ntawv cog lus.
Benzylic Halides yog dab tsi?
Benzylic halides yog cov organic tebchaw uas muaj ib lossis ntau dua halogen atoms ntawm benzylic carbons. Hauv lwm lo lus, cov qauv tshuaj ntawm benzylic halides yog C6H5C-X; ntawm no, ib los yog ntau tshaj halide atoms raug khi rau cov pa roj carbon atom uas nyob ib sab ntawm lub nplhaib benzene. Yog li, benzyl carbon atom yog cov pa roj carbon atom uas txuas ncaj qha rau lub nplhaib benzene. Peb tuaj yeem sau cov benzyl pawg ua "Bn" thiab benzyl halide li "Bn-X" - X yog hais txog halide atom. Feem ntau benzyl halide yog benzyl chloride compound.
Daim duab 02: Cov qauv ntawm Benzyl Chloride
Benzyl chloride tshwm sim ua cov kua tsis muaj xim uas muaj zog heev. Nws yog ib qho tseem ceeb hauv cov txheej txheem chemical synthesis. Peb tuaj yeem npaj benzyl chloride industrially ntawm cov roj theem photochemical cov tshuaj tiv thaiv ntawm toluene thiab chlorine roj. Cov kua no muaj ntxhiab tsw tsw.
Qhov txawv ntawm Allylic thiab Benzylic Halides yog dab tsi?
Ib qho allylic carbon atom yog cov pa roj carbon atom uas nyob ib sab ntawm ob daim ntawv cog lus hauv cov organic compound thaum lub benzylic carbon atom yog cov pa roj carbon atom uas nyob ib sab ntawm lub nplhaib benzene. Qhov sib txawv tseem ceeb ntawm allylic thiab benzylic halides yog tias allylic halides muaj halogen atom sib koom ua ke rau allylic carbon atom whereas benzylic halides muaj halogen atom bonded rau benzylic carbon atom.
Cov hauv qab no infographic tabulates ntau qhov sib txawv ntawm allylic thiab benzylic halides.
Summary – Allylic vs Benzylic Halides
Ib qho allylic carbon atom yog cov pa roj carbon atom uas nyob ib sab ntawm ob daim ntawv cog lus hauv cov organic compound thaum lub benzylic carbon atom yog cov pa roj carbon atom uas nyob ib sab ntawm lub nplhaib benzene. Qhov sib txawv tseem ceeb ntawm allylic thiab benzylic halides yog tias allylic halides muaj halogen atom sib koom ua ke rau allylic carbon atom whereas benzylic halides muaj halogen atom bonded rau benzylic carbon atom.
